The KEEP-NUT™ drill bit for granite and engineered stone materials was designed for drilling KEEP-NUT™ press-in self-anchoring insert holes. 11.8mm Diameter with 5/8″-11 connection.
- Designed for drilling holes in tile and stone for pre-installation or post-installation placement
- Works great on marble, granite, engineered stone, ceramic, porcelain, and glass tile and panels
- Can be used on a standard 3/8” or larger drill
- Can fit on water-fed polishers with 5/8”-11 spindles using the drill bit adapter
- Ideal for drilling holes for anchors for bathroom fixtures, faucets and plumbing pipes
- Available in 3/16”, 1/4”, 5/16”, 3/8”, 1/2”, 1-3/8” and 1-1/2” sizes
- A must-have for the tile installer’s tool box
- Wet use only
Product Attributes
| Diameter | 11.4mm |
| Arbor Bore | 5/8″-11 |
| Diamond Bond | Sintered |
| RPM | 3,500-4,000 |
| Wet Dry Use | Wet |
| Product Weight | 0.5 lbs |






